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dt-bindings: thermal: Add binding document for SR thermal
Add binding document for supported thermal implementation
in Stingray.
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Pramod Kumar <pramod.kumar@broadcom.com>
Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
authored by
Pramod Kumar
and committed by
Eduardo Valentin
b8bdf092
8834f560
+105
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Documentation/devicetree/bindings/thermal/brcm,sr-thermal.txt
+105
Documentation/devicetree/bindings/thermal/brcm,sr-thermal.txt
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* Broadcom Stingray Thermal
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This binding describes thermal sensors that is part of Stingray SoCs.
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Required properties:
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- compatible : Must be "brcm,sr-thermal"
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- reg : Memory where tmon data will be available.
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- brcm,tmon-mask: A one cell bit mask of valid TMON sources.
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Each bit represents single TMON source.
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- #thermal-sensor-cells : Thermal sensor phandler
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- polling-delay: Max number of milliseconds to wait between polls.
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- thermal-sensors: A list of thermal sensor phandles and specifier.
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specifier value is tmon ID and it should be
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in correspond with brcm,tmon-mask.
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- temperature: trip temperature threshold in millicelsius.
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Example:
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tmons {
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compatible = "simple-bus";
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0x0 0x0 0x8f100000 0x100>;
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tmon: tmon@0 {
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compatible = "brcm,sr-thermal";
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reg = <0x0 0x40>;
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brcm,tmon-mask = <0x3f>;
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#thermal-sensor-cells = <1>;
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};
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};
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thermal-zones {
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ihost0_thermal: ihost0-thermal {
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polling-delay-passive = <0>;
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polling-delay = <1000>;
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thermal-sensors = <&tmon 0>;
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trips {
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cpu-crit {
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temperature = <105000>;
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hysteresis = <0>;
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type = "critical";
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};
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};
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};
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ihost1_thermal: ihost1-thermal {
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polling-delay-passive = <0>;
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polling-delay = <1000>;
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thermal-sensors = <&tmon 1>;
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trips {
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cpu-crit {
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temperature = <105000>;
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hysteresis = <0>;
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type = "critical";
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};
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};
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};
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ihost2_thermal: ihost2-thermal {
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polling-delay-passive = <0>;
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polling-delay = <1000>;
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thermal-sensors = <&tmon 2>;
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trips {
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cpu-crit {
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temperature = <105000>;
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hysteresis = <0>;
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type = "critical";
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};
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};
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};
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ihost3_thermal: ihost3-thermal {
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polling-delay-passive = <0>;
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polling-delay = <1000>;
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thermal-sensors = <&tmon 3>;
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trips {
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cpu-crit {
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temperature = <105000>;
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hysteresis = <0>;
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type = "critical";
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};
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};
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};
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crmu_thermal: crmu-thermal {
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polling-delay-passive = <0>;
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polling-delay = <1000>;
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thermal-sensors = <&tmon 4>;
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trips {
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cpu-crit {
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temperature = <105000>;
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hysteresis = <0>;
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type = "critical";
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};
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};
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};
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nitro_thermal: nitro-thermal {
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polling-delay-passive = <0>;
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polling-delay = <1000>;
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thermal-sensors = <&tmon 5>;
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trips {
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cpu-crit {
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temperature = <105000>;
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hysteresis = <0>;
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type = "critical";
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};
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};
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};
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};